Webvar list = db.Users.GroupBy (s=>s.User). select (g=>new {user=g.Key,hobbys=g.select (s=>s.Hobby)}); // you can just do that from db var result=list.ToList (); // this is important,to query data to memory; var result2 = result.select (g=>new {user=g.Key,hobbyes=string.join (",",g.hobbyes)}; //then,do what you love in memory Share Follow WebJul 11, 2013 · Closed 6 years ago. I know that in sql server we cannot use Group_concat function but here is one issue i have in which i need to Group_Concat my query.I google it found some logic but not able to …
group concatenation - Problem with mysql group_concat, …
WebDec 22, 2009 · There is also the string function concat_ws () since PostgreSQL 9.1, that's otherwise doing the same as MySQL's concat_ws () (when not abused as aggregate function). It's particularly useful to deal with NULL values. SELECT concat_ws (';', field1, field2, field3) FROM tbl You could even combine both to aggreagate multiple columns … WebConcatenation There are a number of ways to concatenate data from separate DataFrames: two dataframes with the same columns can be vertically concatenated to make a longer dataframe two dataframes with the same number of rows and non-overlapping columns can be horizontally concatenated to make a wider dataframe delco the delancey company
concat function Databricks on AWS
WebMar 10, 2014 · Use group by with group_cancat SELECT client.id, client.name, GROUP_CONCAT (module.name) AS modules FROM client LEFT JOIN client_module ON client_module.client_id = client.id LEFT JOIN module ON module.id = client_module.module_id WHERE client_module.client_id IN (1,2,4) group by client.id, … WebFeb 8, 2024 · Users can filter and browse the user group events from all power platform products with feature parity to existing community user group experience and added … WebSep 17, 2024 · 1 Answer Sorted by: 12 You can use an array_agg followed by an array_join select id, array_join (array_agg (values),',') from table group by 1 The array_agg will give you an array of all values with the same id, and the array_join will concatenate them into a string. See the docs. Share Improve this answer Follow answered Sep 17, 2024 at 19:26 delco steaks and hoagies menu